Automobile parts OEM Cylindrical roller bearing NU321EM

Automobile parts OEM Cylindrical roller bearing NU321EM

Cylindrical roller bearing

N Series- Bearings of N design are single row cylindrical roller bearing and have two fixed ribs on the inner ring that retain the rollers and cage and one smooth outer ring. This design allows an axial displacement in certain limits, of the shaft in relation to the housing. Therefore, N Series rolling bearings are used in non-locating bearing units. Also, the N Series bearings have virtually no thrust capacity.

NU Series- Are single row cylindrical roller bearings and have two fixed ribs on the outer ring and one smooth inner ring. This design allows an axial displacement in certain limits, of the shaft in relation to the housing. Therefore, NU Series rolling bearings are used in non-locating bearing units. Also, the NU Series bearings have no virtually thrust capacity.

NN Series- Bearings of NN design are double row cylindrical roller bearing and have three fixed ribs on the inner ring that retain the rollers and cage and one smooth outer ring. This design allows an axial displacement in certain limits, of the shaft in relation to the housing. Therefore, N Series rolling bearings are used in non-locating bearing units. Also, the NN Series bearings have no virtually thrust capacity. 

NNU Series- Are double row cylindrical roller bearings and have three fixed ribs on the outer ring and one smooth inner ring. This design allows an axial displacement in certain limits, of the shaft in relation to the housing. Therefore, NU Series rolling bearings are used in non-locating bearing units. Also, the NNU Series bearings have no virtually thrust capacity.

single row cylindrical roller bearings :N NU NJ NF NUP NFP NH(NJ+HJ)

double row cylindrical roller bearings :NN NNU NNF

four row cylindrical roller bearings :FC FCD

full complement cylindrical roller bearings

Application
widely used in automobile, electrical equipment, instrument, building machinery, rolling stock agricultural machinery and various specialized machineries,machine spindle application and are used for cool and hot mills.